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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@author Mark Gates
@generated from control/magma_znan_inf.cpp, normal z -> c, Wed Jan 22 14:39:05 2025
*/
#include <limits>
#include "magma_internal.h"
#define COMPLEX
const magmaFloatComplex MAGMA_C_NAN
= MAGMA_C_MAKE( std::numeric_limits<float>::quiet_NaN(),
std::numeric_limits<float>::quiet_NaN() );
const magmaFloatComplex MAGMA_C_INF
= MAGMA_C_MAKE( std::numeric_limits<float>::infinity(),
std::numeric_limits<float>::infinity() );
/***************************************************************************//**
@param[in] x Scalar to test.
@return true if either real(x) or imag(x) is NAN.
@ingroup magma_nan_inf
*******************************************************************************/
int magma_c_isnan( magmaFloatComplex x )
{
#ifdef COMPLEX
return isnan( real( x )) ||
isnan( imag( x ));
#else
return isnan( x );
#endif
}
/***************************************************************************//**
@param[in] x Scalar to test.
@return true if either real(x) or imag(x) is INF.
@ingroup magma_nan_inf
*******************************************************************************/
int magma_c_isinf( magmaFloatComplex x )
{
#ifdef COMPLEX
return isinf( real( x )) ||
isinf( imag( x ));
#else
return isinf( x );
#endif
}
/***************************************************************************//**
@param[in] x Scalar to test.
@return true if either real(x) or imag(x) is NAN or INF.
@ingroup magma_nan_inf
*******************************************************************************/
int magma_c_isnan_inf( magmaFloatComplex x )
{
#ifdef COMPLEX
return isnan( real( x )) ||
isnan( imag( x )) ||
isinf( real( x )) ||
isinf( imag( x ));
#else
return isnan( x ) || isinf( x );
#endif
}
/***************************************************************************//**
Purpose
-------
magma_cnan_inf checks a matrix that is located on the CPU host
for NAN (not-a-number) and INF (infinity) values.
NAN is created by 0/0 and similar.
INF is created by x/0 and similar, where x != 0.
Arguments
---------
@param[in]
uplo magma_uplo_t
Specifies what part of the matrix A to check.
- = MagmaUpper: Upper triangular part of A
- = MagmaLower: Lower triangular part of A
- = MagmaFull: All of A
@param[in]
m INTEGER
The number of rows of the matrix A. m >= 0.
@param[in]
n INTEGER
The number of columns of the matrix A. n >= 0.
@param[in]
A COMPLEX array, dimension (lda,n), on the CPU host.
The m-by-n matrix to be printed.
@param[in]
lda INTEGER
The leading dimension of the array A. lda >= m.
@param[out]
cnt_nan INTEGER*
If non-NULL, on exit contains the number of NAN values in A.
@param[out]
cnt_inf INTEGER*
If non-NULL, on exit contains the number of INF values in A.
@return
- >= 0: Returns number of NAN + number of INF values.
- < 0: If it returns -i, the i-th argument had an illegal value,
or another error occured, such as memory allocation failed.
@ingroup magma_nan_inf
*******************************************************************************/
extern "C"
magma_int_t magma_cnan_inf(
magma_uplo_t uplo, magma_int_t m, magma_int_t n,
const magmaFloatComplex *A, magma_int_t lda,
magma_int_t *cnt_nan,
magma_int_t *cnt_inf )
{
#define A(i_, j_) (A + (i_) + (j_)*lda)
magma_int_t info = 0;
if (uplo != MagmaLower && uplo != MagmaUpper && uplo != MagmaFull)
info = -1;
else if (m < 0)
info = -2;
else if (n < 0)
info = -3;
else if (lda < m)
info = -5;
if (info != 0) {
magma_xerbla( __func__, -(info) );
return info;
}
int c_nan = 0;
int c_inf = 0;
if (uplo == MagmaLower) {
for (int j = 0; j < n; ++j) {
for (int i = j; i < m; ++i) { // i >= j
if (magma_c_isnan( *A(i,j) )) { c_nan++; }
else if (magma_c_isinf( *A(i,j) )) { c_inf++; }
}
}
}
else if (uplo == MagmaUpper) {
for (int j = 0; j < n; ++j) {
for (int i = 0; i < m && i <= j; ++i) { // i <= j
if (magma_c_isnan( *A(i,j) )) { c_nan++; }
else if (magma_c_isinf( *A(i,j) )) { c_inf++; }
}
}
}
else if (uplo == MagmaFull) {
for (int j = 0; j < n; ++j) {
for (int i = 0; i < m; ++i) {
if (magma_c_isnan( *A(i,j) )) { c_nan++; }
else if (magma_c_isinf( *A(i,j) )) { c_inf++; }
}
}
}
if (cnt_nan != NULL) { *cnt_nan = c_nan; }
if (cnt_inf != NULL) { *cnt_inf = c_inf; }
return (c_nan + c_inf);
}
/***************************************************************************//**
Purpose
-------
magma_cnan_inf checks a matrix that is located on the CPU host
for NAN (not-a-number) and INF (infinity) values.
NAN is created by 0/0 and similar.
INF is created by x/0 and similar, where x != 0.
Arguments
---------
@param[in]
uplo magma_uplo_t
Specifies what part of the matrix A to check.
- = MagmaUpper: Upper triangular part of A
- = MagmaLower: Lower triangular part of A
- = MagmaFull: All of A
@param[in]
m INTEGER
The number of rows of the matrix A. m >= 0.
@param[in]
n INTEGER
The number of columns of the matrix A. n >= 0.
@param[in]
dA COMPLEX array, dimension (ldda,n), on the GPU device.
The m-by-n matrix to be printed.
@param[in]
ldda INTEGER
The leading dimension of the array A. ldda >= m.
@param[out]
cnt_nan INTEGER*
If non-NULL, on exit contains the number of NAN values in A.
@param[out]
cnt_inf INTEGER*
If non-NULL, on exit contains the number of INF values in A.
@param[in]
queue magma_queue_t
Queue to execute in.
@return
- >= 0: Returns number of NAN + number of INF values.
- < 0: If it returns -i, the i-th argument had an illegal value,
or another error occured, such as memory allocation failed.
@ingroup magma_nan_inf
*******************************************************************************/
extern "C"
magma_int_t magma_cnan_inf_gpu(
magma_uplo_t uplo, magma_int_t m, magma_int_t n,
magmaFloatComplex_const_ptr dA, magma_int_t ldda,
magma_int_t *cnt_nan,
magma_int_t *cnt_inf,
magma_queue_t queue )
{
magma_int_t info = 0;
if (uplo != MagmaLower && uplo != MagmaUpper && uplo != MagmaFull)
info = -1;
else if (m < 0)
info = -2;
else if (n < 0)
info = -3;
else if (ldda < m)
info = -5;
if (info != 0) {
magma_xerbla( __func__, -(info) );
return info;
}
magma_int_t lda = m;
magmaFloatComplex* A;
magma_cmalloc_cpu( &A, lda*n );
magma_cgetmatrix( m, n, dA, ldda, A, lda, queue );
magma_int_t cnt = magma_cnan_inf( uplo, m, n, A, lda, cnt_nan, cnt_inf );
magma_free_cpu( A );
return cnt;
}
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